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Italy UNI G30 Classification of grey cast iron and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: G30 / G 30
Category Grade Standard Region/Area Standard Content
Metals G 30 UNI 5007 Italy Classification of grey cast iron

Chemical composition(mass fraction)(wt.%) of the G 30

Element Min Max Similar

Mechanical Properties of steel grade G 30

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
319 (≥) 642 (≥) 31 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade G 30

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
14 - -     0.12 -  
742 881 - 13.3 134   -  
647 - 22 43.2   411 312

Heat Treatment of steel grade G 30

Heat treated : 1717°C - 1564°C

Technological Curves of steel grade G 30

Cross Reference Table (Equivalent Grade) of G 30

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